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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-17 19:16:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-17 19:16:12 -0800
commit231753ef780012eb6f3922c3dfc0a7186baa33c2 (patch)
treec580186402ac9c5d7392ba4516dd3c88588807ba /Documentation/filesystems/vfs.txt
parent0110c350c86d511be2130cb2a30dcbb76c4af750 (diff)
parentd16744ec8ad011793144bb932ce822cc0c1733cb (diff)
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Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull partial readlink cleanups from Miklos Szeredi. This is the uncontroversial part of the readlink cleanup patch-set that simplifies the default readlink handling. Miklos and Al are still discussing the rest of the series. * git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: vfs: make generic_readlink() static vfs: remove ".readlink = generic_readlink" assignments vfs: default to generic_readlink() vfs: replace calling i_op->readlink with vfs_readlink() proc/self: use generic_readlink ecryptfs: use vfs_get_link() bad_inode: add missing i_op initializers
Diffstat (limited to 'Documentation/filesystems/vfs.txt')
-rw-r--r--Documentation/filesystems/vfs.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 3893f4d44cd4..b968084eeac1 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -451,9 +451,6 @@ otherwise noted.
exist; this is checked by the VFS. Unlike plain rename,
source and target may be of different type.
- readlink: called by the readlink(2) system call. Only required if
- you want to support reading symbolic links
-
get_link: called by the VFS to follow a symbolic link to the
inode it points to. Only required if you want to support
symbolic links. This method returns the symlink body
@@ -468,6 +465,12 @@ otherwise noted.
argument. If request can't be handled without leaving RCU mode,
have it return ERR_PTR(-ECHILD).
+ readlink: this is now just an override for use by readlink(2) for the
+ cases when ->get_link uses nd_jump_link() or object is not in
+ fact a symlink. Normally filesystems should only implement
+ ->get_link for symlinks and readlink(2) will automatically use
+ that.
+
permission: called by the VFS to check for access rights on a POSIX-like
filesystem.